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Model SGH-A300
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DUAL BAND GSM TELEPHONE
SGH-A300
SERVICE
DUAL BAND GSM TELEPHONE
Manual
CONTENTS
1. Exploded Views and Parts List 2. Electrical Parts List 3. Block Diagrams 4. PCB Diagrams 5. Flow Chart of Troubleshooting and Circuit Diagram
1. Exploded Views and Parts List
1-1 1-2 1-3 1-4 1-5 1-6 1-7 SGH-A300 SGH-A300 SGH-A300 SGH-A300 SGH-A300 SGH-A300 SGH-A300 GSM Telephone Exploded View GSM Telephone Parts List Travel Adapter Travel Adapter Parts List Cigarette Lighter Adaptor Cigarette Lighter Adapter Parts List Test Jig
1-7-1 SGH-A300 Test Jig Cable 1-7-2 SGH-A300 RF Jig Cable 1-7-3 SGH-A300 Test Jig
2. Electrical Parts List 3. Block Diagrams
3-1 3-2 Main Block Diagram Main RF
3-2-1 RF Tx Part 3-2-2 RF Rx Part
4. PCB Diagrams
4-1 4-2 Main Top Main Bottom
5. Flow chart of trouble shooting
5-1 5-2 5-3 5-4 5-5 5-6 5-7
5-8 5-9 5-10 5-11 5-12 5-13 5-14
Power ON Initial Sim Part Charging Part Microphone Part Speaker Part Key Data Input
Ring Indicator Back Light Alert Tone GSM Receiver GSM Transmit DCS Receiver DCS Transmit
SAMSUNG Proprietary-Contents may change without notice 1-1
1. Exploded View and its Parts List
1-1 SGH-A300 GSM Telephone Exploded View
1
2
12
2-1 12-1 2-2 2-3 12-4 3
12-3
12-2
13
12-5 4 5 7 15
6
14
16
17
7-1
7-2
7-4 7-3 8
21 22
18
9 7-5 23 24-2 20 24-1 19 10 11
24 24-3 24-4 24-5 24-6 25 26
SAMSUNG Proprietary-Contents may change without notice 1-2
Exploded view and its Part List
1-2 SGH-A300 GSM Telephone Parts List
SEC CODE
Location No.
1 2 2-1 2-2 2-3 3 4 5 6 7 7-1 7-2 7-3 7-4 7-5 8 9 10 11 12 12-1 12-2 12-3 12-4 12-5 13 14 15 16 17 18 19 20 21 22 23 24 24-1 24-2 24-3 24-4 24-5 24-6 25 26
Description
DUAL WINDOW SUA, FOLDER UPPER DECORATION SPONDGE-DUAL LCD FOLDER UPPER F-PCB MOTOR SPEAKER LCD ASS'Y SUA, FOLDER LOWER SPONGE LCD MAGNETIC SUA, HINGE ASS'Y SPONGE PCB SUPPORT FOLDER LOWER SHIELD NET SCREW MACHINE DUMMY LABEL LCD WINDOW SUA, FRONT CASE ASS'Y HINGE DUMMY LED LENS FRONT CASE FOLDER HOLDER SHIELD SPONGE VOLUME KEY KEY PAD MIC SHIELD COVER KEY PAD ASS'Y RUBBER SUPPORT IF CONN-COVER BUZZER HOLDER PBA ANTENNA RF JACK DUMMY SUA, REAR CASE ANTENNA BRACKET EAR JACK COVER REAR COVER IRDA WINDOW LOCKER SPRING LOCKER-BATTERY SCREW MACHINE BATTERY
Blue-Tinted Silver GH72-01793F GH75-01004B GH71-00311B GH74-00819A GH72-01795D GH59-00189A GH31-00018A 3001-001215 GH07-00072A GH75-01016A GH74-00939A GH75-01087A GH74-00953A GH72-02317A GH74-01244A 6001-000464 GH68-00370C GH72-02385A GH75-01001A GH72-02420A GH72-00287A GH72-02135A GH73-00263B GH74-01243A GH72-01572A GH72-01582F 3003-001060 GH71-00459A GH59-00188A GH73-00676A GH73-00756A GH73-00653A GH92-00872A GH42-00100A GH73-00611A GH75-01002A GH71-00392A GH72-01574C GH72-02136A GH72-02138A GH70-00063A GH72-01579C 6001-00883 GH43-00315A GH43-00316A
Silver GH72-01793E GH75-01004A GH71-00311C GH74-00819A GH72-01795D GH59-00189A GH31-00018A 3001-001215 GH07-00072A GH75-01016A GH74-00939A GH75-01087A GH74-00953A GH72-02317A GH74-01244A 6001-000464 GH68-00370C GH72-02385A GH75-01001A GH72-02420A GH72-00287A GH72-02135A GH73-00263B GH74-01243A GH72-01572A GH72-01582F 3003-001060 GH71-00459A GH59-00188A GH73-00676A GH73-00756A GH73-00653A GH92-00872A GH42-00100A GH73-00611A GH75-01002A GH71-00392A GH72-01574C GH72-02136A GH72-02138A GH70-00063A GH72-01579C 6001-00883 GH43-00315A GH43-00316A
Remark
850 mAh 550 mAh
SAMSUNG Proprietary-Contents may change without notice 1-3
Exploded view and its Part List
1-3 SGH-A300 Travel Adapter
A
B
C
D
1-4 SGH-A300 Travel Adapter Parts List
TYPE
A B C D
SEC CODE
GH44-00171A GH44-00184A GH44-00171C Gh44-00171E
REMARK
CHINA EUROPE UNITED KINGDOM TAIWAN
SAMSUNG Proprietary-Contents may change without notice 1-4
Exploded view and its Part List
1-5 SGH-A300 Cigarette Lighter Adaptor
1-6 SGH-A300 Cigarette Lighter Adapter Parts List
DESCRIPTION
Cigarette Lighter Adapter Code
SEC CODE
GH44-00195A
REMARK
BLACK
SAMSUNG Proprietary-Contents may change without notice 1-5
Exploded view and its Part List
1-7 SGH-A300 Test Jig
(GH80-00161A)
1-7-1 SGH-A300 Test Jig Cable
(GH39-00096A)
1-7-2 SGH-A300 RF Jig Cable
(GH39-00026A)
SAMSUNG Proprietary-Contents may change without notice 1-6
Exploded view and its Part List
1-7-3 SGH-A300 Test Jig
DC POWER SUPPLY
8922 or 8960 WIRELESS COMMUNICATIONS TEST SET
RF JIG CABLE
TES
T JI
G
232 CABLE
TEST JIG CABLE
SAMSUNG Proprietary-Contents may change without notice 1-7
2. SGH-A300 Electrical Parts List
Level 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 SEC CODE 3002-001101 4302-001119 2203-002443 2203-005065 2203-000386 2203-005571 2203-000359 2203-005509 2203-000233 2203-000812 2404-001151 2203-005571 2203-000278 2203-000628 2203-001432 2203-000812 2203-005061 2203-001432 2203-000628 2203-000812 2203-005571 2203-005061 2203-005061 2203-001432 2404-001101 2203-005061 2203-005509 2203-000359 2203-000359 2203-005061 2203-000254 2203-000679 2404-001101 2203-000679 2404-001155 2203-000359 2203-005509 REFERENCE AU600 BAT200 C100 C101 C102 C103 C104 C105 C106 C107 C108 C109 C110 C111 C112 C113 C114 C115 C116 C117 C118 C119 C120 C121 C200 C201 C202 C203 C204 C205 C206 C207 C208 C209 C210 C211 C212 DESCRIPTIONS 88dB, 3.6 V, 100 mA, 2550Hz, TP 3 V, 0.1MAH, -, -, 3.1 V, 0.33 nF, 10 %, 50 V, X7R, TP, 1005 1000 nF, +80-20 %, 10 V, Y5 V, TP, 1608 0.015 nF, 5 %, 50 V, NP0, TP, 1005 10000 nF, +80-20 %, 6.3 V, Y5 V, TP, 2012 0.15 nF, 5 %, 50 V, NP0, TP, 1005 330 nF, +80-20 %, 10 V, Y5 V, TP, 1005 0.1 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 33UF, 20 %, 6.3 V, LZ, TP, 3216 10000 nF, +80-20 %, 6.3 V, Y5 V, TP, 2012 0.01 nF, 0.5 pF, 50 V, NP0, TP, 1005 0.022 nF, 5 %, 50 V, NP0, TP, 1005 47 nF, +80-20 %, 16 V, Y5 V, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 100 nF, +80-20 %, 16 V, Y5 V, TP, 1005 47 nF, +80-20 %, 16 V, Y5 V, TP, 1005 0.022 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 10000 nF, +80-20 %, 6.3 V, Y5 V, TP, 2012 100 nF, +80-20 %, 16 V, Y5 V, TP, 1005 100 nF, +80-20 %, 16 V, Y5 V, TP, 1005 47 nF, +80-20 %, 16 V, Y5 V, TP, 1005 1uF, 20 %, 16 V, GP, TP, 2012, 100 nF, +80-20 %, 16 V, Y5 V, TP, 1005 330 nF, +80-20 %, 10 V, Y5 V, TP, 1005 0.15 nF, 5 %, 50 V, NP0, TP, 1005 0.15 nF, 5 %, 50 V, NP0, TP, 1005 100 nF, +80-20 %, 16 V, Y5 V, TP, 1005 10 nF, 10 %, 16 V, X7R, TP, 1005, 0.027 nF, 5 %, 50 V, NP0, TP, 1005 1uF, 20 %, 16 V, GP, TP, 2012, 0.027 nF, 5 %, 50 V, NP0, TP, 1005 100UF, 10 %, 6.3 V, LZ, TP, 4427 0.15 nF, 5 %, 50 V, NP0, TP, 1005 330 nF, +80-20 %, 10 V, Y5 V, TP, 1005 Remark
SAMSUNG Proprietary-Contents may change without notice 2-1
Electrical Parts List
Level 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69
SEC CODE 2203-005061 2203-005061 2203-005061 2203-000233 2203-000233 2203-005053 2203-005053 2203-005446 2404-001234 2203-000628 2203-000438 2203-005053 2203-000628 2203-000628 2301-001230 2404-001105 2203-000940 2203-000812 2203-000254 2203-000254 2203-000836 2203-005664 2203-000812 2203-000438 2203-000278 2203-005446 2203-000278 2203-000425 2203-000425 2203-000940 2203-000330 2203-000836
REFERENCE C213 C214 C280 C300 C301 C302 C303 C304 C305 C307 C308 C309 C310 C311 C312 C313 C314 C315 C316 C317 C318 C319 C320 C321 C322 C323 C324 C326 C327 C329 C330 C331
DESCRIPTIONS 100 nF, +80-20 %, 16 V, Y5 V, TP, 1005 100 nF, +80-20 %, 16 V, Y5 V, TP, 1005 100 nF, +80-20 %, 16 V, Y5 V, TP, 1005 0.1 nF, 5 %, 50 V, NP0, TP, 1005 0.1 nF, 5 %, 50 V, NP0, TP, 1005 0.0039 nF, 0.25 pF, 50 V, NP0, TP, 1005 0.0039 nF, 0.25 pF, 50 V, NP0, TP, 1005 0.0027 nF, 0.1 pF, 50 V, NP0, TP, 1005 68uF, 20 %, 6.3 V, -, TP, 3.3 x 2.7 x 1.7 mm 0.022 nF, 5 %, 50 V, NP0, TP, 1005 1 nF, 10 %, 50 V, X7R, TP, 1005, 0.0039 nF, 0.25 pF, 50 V, NP0, TP, 1005 0.022 nF, 5 %, 50 V, NP0, TP, 1005 0.022 nF, 5 %, 50 V, NP0, TP, 1005 10 nF, 5 %, 16 V, TP, 2012, 10UF, 20 %, 6.3 V, GP, TP, 2012 470 pF, 10 %, 50 V, X7R, TP, 1005, 0.033 nF, 5 %, 50 V, NP0, TP, 1005 10 nF, 10 %, 16 V, X7R, TP, 1005, 10 nF, 10 %, 16 V, X7R, TP, 1005, 390 pF, 10 %, 50 V, X7R, TP, 1005, 4700 nF, 10 %, 6.3 V, X5R, TP, 2012 0.033 nF, 5 %, 50 V, NP0, TP, 1005 1 nF, 10 %, 50 V, X7R, TP, 1005, 0.01 nF, 0.5 pF, 50 V, NP0, TP, 1005 0.0027 nF, 0.1 pF, 50 V, NP0, TP, 1005 0.01 nF, 0.5 pF, 50 V, NP0, TP, 1005 0.018 nF, 5 %, 50 V, NP0, TP, 1005 0.018 nF, 5 %, 50 V, NP0, TP, 1005 470 pF, 10 %, 50 V, X7R, TP, 1005, 0.012 nF, 5 %, 50 V, NP0, TP, 1005 390 pF, 10 %, 50 V, X7R, TP, 1005, -
Remark
SAMSUNG Proprietary-Contents may change without notice 2-2
Electrical Parts List
Level 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101
SEC CODE 2203-005481 2203-005664 2203-000386 2203-000812 2301-001230 2203-005158 2203-005158 2203-000812 2203-000812 2203-002443 2203-002443 2203-002443 2203-002443 2203-000254 2203-000254 2203-000233 2203-005061 2203-005065 2203-005065 2203-005664 2203-005664 2203-000254 2203-005065 2203-000995 2203-000359 2203-000359 2203-000254 2203-005065 2203-000233 2404-001155 2203-005562 2203-005061
REFERENCE C332 C333 C334 C335 C336 C337 C338 C339 C340 C341 C342 C343 C344 C345 C346 C401 C402 C403 C404 C405 C406 C407 C408 C409 C410 C411 C412 C413 C414 C415 C416 C417
DESCRIPTIONS 47 nF, 10 %, 10 V, X7R, TP, 1005, 4700 nF, 10 %, 6.3 V, X5R, TP, 2012 0.015 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 10 nF, 5 %, 16 V, TP, 2012, 0.0022 nF, 0.25 pF, 50 V, NP0, TP, 1005 0.0022 nF, 0.25 pF, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.33 nF, 10 %, 50 V, X7R, TP, 1005 0.33 nF, 10 %, 50 V, X7R, TP, 1005 0.33 nF, 10 %, 50 V, X7R, TP, 1005 0.33 nF, 10 %, 50 V, X7R, TP, 1005 10 nF, 10 %, 16 V, X7R, TP, 1005, 10 nF, 10 %, 16 V, X7R, TP, 1005, 0.1 nF, 5 %, 50 V, NP0, TP, 1005 100 nF, +80-20 %, 16 V, Y5 V, TP, 1005 1000 nF, +80-20 %, 10 V, Y5 V, TP, 1608 1000 nF, +80-20 %, 10 V, Y5 V, TP, 1608 4700 nF, 10 %, 6.3 V, X5R, TP, 2012 4700 nF, 10 %, 6.3 V, X5R, TP, 2012 10 nF, 10 %, 16 V, X7R, TP, 1005, 1000 nF, +80-20 %, 10 V, Y5 V, TP, 1608 0.047 nF, 5 %, 50 V, NP0, TP, 1005 0.15 nF, 5 %, 50 V, NP0, TP, 1005 0.15 nF, 5 %, 50 V, NP0, TP, 1005 10 nF, 10 %, 16 V, X7R, TP, 1005, 1000 nF, +80-20 %, 10 V, Y5 V, TP, 1608 0.1 nF, 5 %, 50 V, NP0, TP, 1005 100 uF, 10 %, 6.3 V, LZ, TP, 4427 10000 nF, +80-20 %, 10 V, Y5 V, TP, 3216 100 nF, +80-20 %, 16 V, Y5 V, TP, 1005
Remark
SAMSUNG Proprietary-Contents may change without notice 2-3
Electrical Parts List
Level 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133
SEC CODE 2203-000940 2203-000254 2404-001086 2203-000233 2203-000438 2203-000812 2203-000233 2203-000233 2203-000278 2203-005056 2203-000233 2203-000233 2203-005234 2203-000628 2203-000628 2203-001385 2203-000278 2203-000628 2203-000628 2203-000812 2203-000812 2203-000278 2404-001155 2203-005148 2203-005509 2203-000628 2203-000233 2203-000812 2203-000254 2203-000233 2203-000233 2203-000812
REFERENCE C418 C419 C420 C500 C501 C503 C504 C505 C506 C507 C508 C509 C511 C512 C513 C514 C515 C516 C517 C518 C519 C520 C521 C522 C524 C525 C526 C527 C528 C530 C532 C533
DESCRIPTIONS 470 pF, 10 %, 50 V, X7R, TP, 1005, 10 nF, 10 %, 16 V, X7R, TP, 1005, 4.7uF, 20 %, 6.3 V, GP, TP, 2012, 0.1 nF, 5 %, 50 V, NP0, TP, 1005 1 nF, 10 %, 50 V, X7R, TP, 1005, 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.1 nF, 5 %, 50 V, NP0, TP, 1005 0.1 nF, 5 %, 50 V, NP0, TP, 1005 0.01 nF, 0.5 pF, 50 V, NP0, TP, 1005 0.0068 nF, 0.25 pF, 50 V, NP0, TP, 1005 0.1 nF, 5 %, 50 V, NP0, TP, 1005 0.1 nF, 5 %, 50 V, NP0, TP, 1005 0.0012 nF, 0.25 pF, 50 V, NP0, TP, 1005 0.022 nF, 5 %, 50 V, NP0, TP, 1005 0.022 nF, 5 %, 50 V, NP0, TP, 1005 0.0015 nF, 0.25 pF, 50 V, NP0, TP, 1005 0.01 nF, 0.5 pF, 50 V, NP0, TP, 1005 0.022 nF, 5 %, 50 V, NP0, TP, 1005 0.022 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.01 nF, 0.5 pF, 50 V, NP0, TP, 1005 100 uF, 10 %, 6.3 V, LZ, TP, 4427 100 nF, 10 %, 16 V, X7R, TP, 1608, 330 nF, +80-20 %, 10 V, Y5 V, TP, 1005 0.022 nF, 5 %, 50 V, NP0, TP, 1005 0.1 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 10 nF, 10 %, 16 V, X7R, TP, 1005, 0.1 nF, 5 %, 50 V, NP0, TP, 1005 0.1 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005
Remark
SAMSUNG Proprietary-Contents may change without notice 2-4
Electrical Parts List
Level 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165
SEC CODE 2203-005061 2203-000278 2203-000628 2203-000438 2203-000812 2203-000696 2203-000466 2203-000679 2203-000233 2301-001475 2203-000995 2203-000628 2203-000278 2203-001432 2203-005065 2203-000812 2203-000628 2404-001151 2203-000438 2203-000628 2203-005367 2203-000812 2203-000812 2203-000812 2404-001151 2203-000812 2203-005065 2203-000812 2203-005061 2203-005061 2203-000628 2203-005065
REFERENCE C534 C535 C537 C538 C539 C540 C541 C542 C543 C544 C545 C546 C547 C548 C549 C600 C601 C602 C604 C605 C606 C608 C609 C611 C613 C614 C615 C616 C617 C618 C620 C621
DESCRIPTIONS 100 nF, +80-20 %, 16 V, Y5 V, TP, 1005 0.01 nF, 0.5 pF, 50 V, NP0, TP, 1005 0.022 nF, 5 %, 50 V, NP0, TP, 1005 1 nF, 10 %, 50 V, X7R, TP, 1005, 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.002 nF, 0.25 pF, 50 V, NP0, TP, 1005 0.001 nF, 0.25 pF, 50 V, NP0, TP, 1005 0.027 nF, 5 %, 50 V, NP0, TP, 1005 0.1 nF, 5 %, 50 V, NP0, TP, 1005 3.9 nF, 5 %, 16 V, TP, 2.0 x 1.25 x 0.9 mm, 0.047 nF, 5 %, 50 V, NP0, TP, 1005 0.022 nF, 5 %, 50 V, NP0, TP, 1005 0.01 nF, 0.5 pF, 50 V, NP0, TP, 1005 47 nF, +80-20 %, 16 V, Y5 V, TP, 1005 1000 nF, +80-20 %, 10 V, Y5 V, TP, 1608 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.022 nF, 5 %, 50 V, NP0, TP, 1005 33UF, 20 %, 6.3 V, LZ, TP, 3216 1 nF, 10 %, 50 V, X7R, TP, 1005, 0.022 nF, 5 %, 50 V, NP0, TP, 1005 6800 nF, +80-20 %, 25 V, Y5 V, TP, 3225 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 33 uF, 20 %, 6.3 V, LZ, TP, 3216 0.033 nF, 5 %, 50 V, NP0, TP, 1005 1000 nF, +80-20 %, 10 V, Y5 V, TP, 1608 0.033 nF, 5 %, 50 V, NP0, TP, 1005 100 nF, +80-20 %, 16 V, Y5 V, TP, 1005 100 nF, +80-20 %, 16 V, Y5 V, TP, 1005 0.022 nF, 5 %, 50 V, NP0, TP, 1005 1000 nF, +80-20 %, 10 V, Y5 V, TP, 1608
Remark
SAMSUNG Proprietary-Contents may change without notice 2-5
Electrical Parts List
Level 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197
SEC CODE 2203-005065 2203-000628 2404-001155 2203-005065 2203-001412 2203-005061 2203-001412 2404-001020 2404-001020 2203-000812 2203-000812 2203-000812 2203-000812 2203-000812 2203-000812 2203-000812 2203-000812 2203-000812 2203-000812 2203-005065 2203-000359 2203-000812 2203-000386 2203-000386 3709-001190 3705-001178 3722-001530 3711-004623 3711-004623 3710-001653 3711-004814 3711-004814
REFERENCE C622 C625 C627 C630 C631 C632 C633 C634 C635 C636 C637 C638 C639 C640 C641 C642 C643 C644 C647 C651 C652 C657 C658 C659 CN400 CN500 CN600 CN601 CN602 CN603 CN604 CN605
DESCRIPTIONS 1000 nF, +80-20 %, 10 V, Y5 V, TP, 1608 0.022 nF, 5 %, 50 V, NP0, TP, 1005 100UF, 10 %, 6.3 V, LZ, TP, 4427 1000 nF, +80-20 %, 10 V, Y5 V, TP, 1608 0.03 nF, 5 %, 50 V, NP0, TP, 1005 100 nF, +80-20 %, 16 V, Y5 V, TP, 1005 0.03 nF, 5 %, 50 V, NP0, TP, 1005 10 uF, 20 %, 10 V, GP, TP, 3216, 3.2 10 uF, 20 %, 10 V, GP, TP, 3216, 3.2 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 1000 nF, +80-20 %, 10 V, Y5 V, TP, 1608 0.15 nF, 5 %, 50 V, NP0, TP, 1005 0.033 nF, 5 %, 50 V, NP0, TP, 1005 0.015 nF, 5 %, 50 V, NP0, TP, 1005 0.015 nF, 5 %, 50 V, NP0, TP, 1005 6P, 2.54 mm, SMD, SMC, JACK, 100M ohm, 50 ohm, .5DB 5P, 2.6PI, AUF, BLK, BOX, 20P, 2R, 0.5mm, SMD-S, AUF BOX, 20P, 2R, 0.5mm, SMD-S, AUF 18P, 1R, 0.5mm, SMD-A, AUF -, 2P, -, 2.5 mm, STRAGHIT, AU0.1U, BLK -, 2P, -, 2.5 mm, STRAGHIT, AU0.1U, BLK
Remark
SAMSUNG Proprietary-Contents may change without notice 2-6
Electrical Parts List
Level 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229
SEC CODE 0407-000115 0401-001033 0405-001093 0401-001033 0402-001463 0407-000115 2903-001211 2904-001165 2904-001096 2904-001281 2703-000310 2703-001543 2703-001513 2703-002214 2703-001513 2703-001545 2703-001543 2703-001547 2703-001547 2703-001547 2703-002218 2703-001954 2703-002213 2703-002212 2703-001425 2703-002213 2703-001547 2703-001425 2703-000175 3301-001208 2703-001297 4709-001144
REFERENCE D200 D201 D300 D402 D500 D601 F300 F301 F500 F501 L100 L300 L301 L302 L303 L304 L305 L306 L307 L308 L400 L501 L502 L503 L504 L505 L506 L507 L600 L602 L603 LAM1
DESCRIPTIONS DAN202U, 80 V, 100 mA, CA2-3, SC-70, MCL4154, 25 V, 200 mA, M-MELF, TP MA4ST230, 12 V, -, SOT-23, TP MCL4154, 25 V, 200 mA, M-MELF, TP HSMS-2825, 15 V, 1A, SOT-143, TP DAN202U, 80 V, 100 mA, CA2-3, SC-70, BP, 14.6 MHz, 300KHz, 6dB, 1dB, TP, 400 MHZ, .28 MHZ, +-70KHZ, TP, 6.5DB, 1.8425GHz, 75 MHz, +-37.5 MHz/2.5dB 947.5 MHz, 25 MHz, +-12.5 MHz/1.4dB 1.8 uH, 10 %, 0.8 x 1.6 x 0.8 mm 33 nH, 5 %, 1.8 x 1.12 x 1.02 mm 100 nH, 5 %, 1.8 x 1.12 x 1.02 mm 8.2 nH, 5 %, 1.6 x 0.8 x 0.8 mm 100 nH, 5 %, 1.8 x 1.12 x 1.02 mm 47 nH, 5 %, 1.8 x 1.12 x 1.02 mm 33 nH, 5 %, 1.8 x 1.12 x 1.02 mm 10 nH, 5 %, 1.8 x 1.12 x 1.02 mm 10 nH, 5 %, 1.8 x 1.12 x 1.02 mm 10 nH, 5 %, 1.8 x 1.12 x 1.02 mm 100 uH, 20 %, 3.3 x 1.5 x 0.8 mm 2.7 nH, 0.3 nH, 1.0 x 0.5 x 0.5mm 3.3 nH, 5 %, 1.6 x 0.8 x 0.8 mm 1.6 nH, 5 %, 1.6 x 0.8 x 0.8 mm 68 nH, 5 %, 1.6 x 0.8 x 0.8 mm 3.3 nH, 5 %, 1.6 x 0.8 x 0.8 mm 10 nH, 5 %, 1.8 x 1.12 x 1.02 mm 68 nH, 5 %, 1.6 x 0.8 x 0.8 mm 270 nH, 10 %, 0.8 x 1.6 x 0.8 mm AB, 1.6 x 0.8 x 0.8 mm, -, 10 nH, 10 %, 1.6 x 0.8 x 0.8 mm 897.5/1747.5 MHZ, 19DB/14DB
Remark
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Electrical Parts List
Level 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261
SEC CODE 0604-001146 2801-003695 2801-004025 2806-001191 0501-000162 0504-000167 0504-001012 0504-001012 0501-002356 0501-002357 0501-002202 0504-001012 0504-001012 0504-000168 0501-002346 0501-002356 0506-001052 0504-001012 2007-000140 2007-000140 2007-007771 2007-001313 2007-007092 2007-000775 2007-007468 2007-007092 2007-000140 2007-000148 2007-000148 2007-000148 2007-000148 2007-000137
REFERENCE LED600 OSC100 OSC200 OSC300 Q200 Q201 Q202 Q203 Q204 Q400 Q401 Q500 Q501 Q600 Q601 Q603 Q604 Q605 R100 R101 R102 R103 R104 R105 R106 R107 R200 R203 R204 R205 R206 R207
DESCRIPTIONS -, 875NM, 500 mW, 30DEG, TP 19.5 MHz, 10ppm, 28-ABK, 10.2 pF, 20 0.032768 MHz, 20 ppm, 28-ABK, 1.7fF, 65 kohm, TP 1258-1360 MHZ, -, 50 ohm, TP, 2.7 V, 20 mA 2SA1576, PNP, 200 mW, SOT-323, TP, 180-390 RN1102, NPN, 100 mW, 10K/10K, SSM, TP DTC114YE, NPN, 150 mW, 10K/47K, EMT3, TP DTC114YE, NPN, 150 mW, 10K/47K, EMT3, TP -, NPN, 250 mW, SOT-323, TP, 250-630 ZUMT619, NPN, 500 mW, SOT-323, TP, 200MMBT2222AWT1, NPN, 150 mW, SOT-323 DTC114YE, NPN, 150 mW, 10K/47K, EMT3, TP DTC114YE, NPN, 150 mW, 10K/47K, EMT3, TP RN1104, NPN, 100 mW, 47K/47K, SSM, TP 2SB1427, PNP, 500 mW, SOT-89, TP, 390-820 -, NPN, 250 mW, SOT-323, TP, 250-630 UMH9N, NPN, 2, 150 mW, SC-88, TP, 68DTC114YE, NPN, 150 mW, 10K/47K, EMT3, TP 1 kohm, 5 %, 1/16 W, DA, TP, 1005 1 kohm, 5 %, 1/16 W, DA, TP, 1005 0 ohm, 5 %, 1/16 W, DA, TP, 1005 330 ohm, 5 %, 1/16 W, DA, TP, 1005 1.1 kohm, 5 %, 1/16 W, DA, TP, 1005 33 kohm, 5 %, 1/16 W, DA, TP, 1005 121 kohm, 1 %, 1/16 W, DA, TP, 1005 1.1 kohm, 5 %, 1/16 W, DA, TP, 1005 1 kohm, 5 %, 1/16 W, DA, TP, 1005 10 kohm, 5 %, 1/16 W, DA, TP, 1005 10 kohm, 5 %, 1/16 W, DA, TP, 1005 10 kohm, 5 %, 1/16 W, DA, TP, 1005 10 kohm, 5 %, 1/16 W, DA, TP, 1005 2 kohm, 5 %, 1/16 W, DA, TP, 1005
Remark
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Electrical Parts List
Level 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293
SEC CODE 2007-000148 2007-000148 2007-000148 2007-000148 2007-000148 2007-000148 2007-000138 2007-007771 2007-000170 2007-001313 2007-001313 2007-007193 2007-000932 2007-007771 2007-000932 2007-001288 2007-001288 2007-001323 2007-000172 2007-000172 2007-001288 2007-001323 2007-008213 2007-007001 2007-002965 2007-001298 3301-001342 2007-000146 2007-000138 2007-007136 3301-001342 2007-001298
REFERENCE R209 R211 R212 R213 R214 R215 R216 R217 R218 R219 R220 R223 R228 R280 R281 R300 R301 R302 R303 R304 R305 R306 R307 R308 R309 R310 R311 R312 R313 R314 R315 R316
DESCRIPTIONS 10 kohm, 5 %, 1/16 W, DA, TP, 1005 10 kohm, 5 %, 1/16 W, DA, TP, 1005 10 kohm, 5 %, 1/16 W, DA, TP, 1005 10 kohm, 5 %, 1/16 W, DA, TP, 1005 10 kohm, 5 %, 1/16 W, DA, TP, 1005 10 kohm, 5 %, 1/16 W, DA, TP, 1005 100 ohm, 5 %, 1/16 W, DA, TP, 1005 0 ohm, 5 %, 1/16 W, DA, TP, 1005 1 Mohm, 5 %, 1/16 W, DA, TP, 1005 330 ohm, 5 %, 1/16 W, DA, TP, 1005 330 ohm, 5 %, 1/16 W, DA, TP, 1005 5.1 ohm, 5 %, 1/16 W, DA, TP, 1005 470 ohm, 5 %, 1/16 W, DA, TP, 1005 0 ohm, 5 %, 1/16 W, DA, TP, 1005 470 ohm, 5 %, 1/16 W, DA, TP, 1005 18 ohm, 5 %, 1/16 W, DA, TP, 1005 18 ohm, 5 %, 1/16 W, DA, TP, 1005 3 kohm, 5 %, 1/16 W, DA, TP, 1005 10 ohm, 5 %, 1/16 W, DA, TP, 1005 10 ohm, 5 %, 1/16 W, DA, TP, 1005 18 ohm, 5 %, 1/16 W, DA, TP, 1005 3 kohm, 5 %, 1/16 W, DA, TP, 1005 4.3 kohm, 1 %, 1/16 W, DA, TP, 1005 3.9 kohm, 5 %, 1/16 W, DA, TP, 1005 15 ohm, 5 %, 1/16 W, DA, TP, 1005 51 ohm, 5 %, 1/16 W, DA, TP, 1005 AB, 1.5 kohm, 1 x 0.5 x 0.5 mm, 100 mA, TP, M, 1.4ohm 6.8 kohm, 5 %, 1/16 W, DA, TP, 1005 100 ohm, 5 %, 1/16 W, DA, TP, 1005 4.7 kohm, 1 %, 1/16 W, DA, TP, 1005 AB, 1.5 kohm, 1 x 0.5 x 0.5 mm, 100 mA, TP, M, 1.4ohm 51 ohm, 5 %, 1/16 W, DA, TP, 1005
Remark
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Electrical Parts List
Level 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325
SEC CODE 2007-002965 3301-001342 2007-007771 2007-000162 2007-000143 2007-000143 2007-000138 2007-007156 2007-000138 2007-000141 2007-000157 2007-000140 2007-000070 2007-000140 2007-000148 2007-000148 2007-001298 2007-007193 2007-001298 2007-007193 2007-000148 2007-000137 2007-007142 2007-007312 2007-001308 2007-007142 2007-007142 2007-007142 2007-001305 2007-007142 2007-007142 2007-007142
REFERENCE R317 R318 R403 R404 R407 R409 R410 R411 R412 R413 R414 R500 R501 R502 R503 R505 R506 R507 R508 R509 R510 R511 R512 R513 R514 R515 R516 R517 R518 R519 R520 R521
DESCRIPTIONS 15 ohm, 5 %, 1/16 W, DA, TP, 1005 AB, 1.5 kohm, 1 x 0.5 x 0.5 mm, 100 mA, TP, M, 1.4ohm 0 ohm, 5 %, 1/16 W, DA, TP, 1005 100 kohm, 5 %, 1/16 W, DA, TP, 1005 4.7 kohm, 5 %, 1/16 W, DA, TP, 1005 4.7 kohm, 5 %, 1/16 W, DA, TP, 1005 100 ohm, 5 %, 1/16 W, DA, TP, 1005 1 ohm, 5 %, 1/16 W, DA, TP, 1005 100 ohm, 5 %, 1/16 W, DA, TP, 1005 2.2 kohm, 5 %, 1/16 W, DA, TP, 1005 47 kohm, 5 %, 1/16 W, DA, TP, 1005 1 kohm, 5 %, 1/16 W, DA, TP, 1005 0 ohm, 5 %, 1/16 W, DA, TP, 1608 1 kohm, 5 %, 1/16 W, DA, TP, 1005 10 kohm, 5 %, 1/16 W, DA, TP, 1005 10 kohm, 5 %, 1/16 W, DA, TP, 1005 51 ohm, 5 %, 1/16 W, DA, TP, 1005 5.1 ohm, 5 %, 1/16 W, DA, TP, 1005 51 ohm, 5 %, 1/16 W, DA, TP, 1005 5.1 ohm, 5 %, 1/16 W, DA, TP, 1005 10 kohm, 5 %, 1/16 W, DA, TP, 1005 2 kohm, 5 %, 1/16 W, DA, TP, 1005 10 kohm, 1 %, 1/16 W, DA, TP, 1005 20 kohm, 1 %, 1/16 W, DA, TP, 1005 200 ohm, 5 %, 1/16 W, DA, TP, 1005 10 kohm, 1 %, 1/16 W, DA, TP, 1005 10 kohm, 1 %, 1/16 W, DA, TP, 1005 10 kohm, 1 %, 1/16 W, DA, TP, 1005 120 ohm, 5 %, 1/16 W, DA, TP, 1005 10 kohm, 1 %, 1/16 W, DA, TP, 1005 10 kohm, 1 %, 1/16 W, DA, TP, 1005 10 kohm, 1 %, 1/16 W, DA, TP, 1005
Remark
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Electrical Parts List
Level 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357
SEC CODE 2007-000137 2007-001306 2007-001308 2007-000170 2007-007771 2007-007095 2007-000139 2007-000140 2007-000148 2007-000145 2007-008263 2007-000140 2007-001301 2007-000142 2007-000165 2007-000162 2007-000148 2007-000142 2007-000162 2007-000140 2007-000140 2007-000154 2007-001119 2007-000165 2007-007771 2007-001306 2007-007316 2007-000140 2007-000140 2007-000140 2007-000162 2007-000140
REFERENCE R522 R523 R524 R525 R526 R527 R528 R529 R530 R531 R532 R601 R604 R605 R607 R609 R610 R611 R612 R613 R616 R619 R620 R621 R634 R635 R637 R638 R639 R640 R641 R642
DESCRIPTIONS 2 kohm, 5 %, 1/16 W, DA, TP, 1005 150 ohm, 5 %, 1/16 W, DA, TP, 1005 200 ohm, 5 %, 1/16 W, DA, TP, 1005 1M ohm, 5 %, 1/16 W, DA, TP, 1005 0 ohm, 5 %, 1/16 W, DA, TP, 1005 390 ohm, 5 %, 1/16 W, DA, TP, 1005 220 ohm, 5 %, 1/16 W, DA, TP, 1005 1 kohm, 5 %, 1/16 W, DA, TP, 1005 10 kohm, 5 %, 1/16 W, DA, TP, 1005 6.2 kohm, 5 %, 1/16 W, DA, TP, 1005 3 kohm, 1 %, 2 W, -, TP, 1005 1 kohm, 5 %, 1/16 W, DA, TP, 1005 68 ohm, 5 %, 1/16 W, DA, TP, 1005 2.7 kohm, 5 %, 1/16 W, DA, TP, 1005 200 kohm, 5 %, 1/16 W, DA, TP, 1005 100 kohm, 5 %, 1/16 W, DA, TP, 1005 10 kohm, 5 %, 1/16 W, DA, TP, 1005 2.7 kohm, 5 %, 1/16 W, DA, TP, 1005 100 kohm, 5 %, 1/16 W, DA, TP, 1005 1 kohm, 5 %, 1/16 W, DA, TP, 1005 1 kohm, 5 %, 1/16 W, DA, TP, 1005 24 kohm, 5 %, 1/16 W, DA, TP, 1005 680 ohm, 5 %, 1/16 W, DA, TP, 1005 200 kohm, 5 %, 1/16 W, DA, TP, 1005 0 ohm, 5 %, 1/16 W, DA, TP, 1005 150 ohm, 5 %, 1/16 W, DA, TP, 1005 3.3 kohm, 1 %, 1/16 W, DA, TP, 1005 1 kohm, 5 %, 1/16 W, DA, TP, 1005 1 kohm, 5 %, 1/16 W, DA, TP, 1005 1 kohm, 5 %, 1/16 W, DA, TP, 1005 100 kohm, 5 %, 1/16 W, DA, TP, 1005 1 kohm, 5 %, 1/16 W, DA, TP, 1005
Remark
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Electrical Parts List
Level 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389
SEC CODE 2007-007592 2007-007875 2007-000153 2007-000148 2007-000070 2007-007771 2007-007771 1205-001708 0902-001231 1203-001592 1205-001647 1203-001703 1203-002099 0504-001042 0504-001042 0504-001042 0504-001012 2909-001084 2007-000137 1201-001697 1201-001753 0504-001042 1201-001754 1209-001219 0801-002640 2806-001192 1106-001301 1103-001147 0506-001052 1201-001462 0504-001071 1203-002127
REFERENCE R643 R644 R646 R648 R649 R650 R651 U100 U201 U202 U300 U400 U401 U500 U501 U502 U503 U505 U506 U507 U508 U509 U510 U511 U512 U513 U514 U515 U600 U602 U603 U605
DESCRIPTIONS 270 kohm, 1 %, 1/16 W, DA, TP, 1005 160 kohm, 1 %, 1/16 W, DA, TP, 1005 22 kohm, 5 %, 1/16 W, DA, TP, 1005 10 kohm, 5 %, 1/16 W, DA, TP, 1005 0 ohm, 5 %, 1/16 W, DA, TP, 1608 0 ohm, 5 %, 1/16 W, DA, TP, 1005 0 ohm, 5 %, 1/16 W, DA, TP, 1005 20420, BGA, 100P, -, PLASTIC 46, 16BIT, BGA, 180P, -, 32.768 MHZ 1015, SOT-23A-5, 5P, 59MIL, PLASTI RF137, TQFP, 48P, 275MIL 20436, TQFP, 48P, 275MIL, PLASTIC, 2.8V 5245, SOT-23-5, 5P, 64MIL BCR10PN, NPN/PNP, 250 mW, 10K/10K, BCR10PN, NPN/PNP, 250 mW, 10K/10K, BCR10PN, NPN/PNP, 250 mW, 10K/10K, DTC114YE, NPN, 150 mW, 10K/47K, EMT3, TP 942.5 MHZ, 897.5 MHZ, 1/1.2DB, TP, -, 2 kohm, 5 %, 1/16 W, DA, TP, 1005 RF210-51, TSSOP, 20P, 173MIL MSOP, TP, 8P, 118MIL, DUAL BCR10PN, NPN/PNP, 250 mW, 10K/10K, MCM, 16P, -, -, -, PLASTIC, 7V LM60C, SOT-23, 3P, 115MIL, PLASTIC 7WZ00, 2-INPUT NAND GATE, US8, 8P 902.5/1747.5 MHz, -, -, TP, 2.7 V, 50 mA 1337, 262K x 16Bit, CSP, 72P 24256, 256KBIT, SOP, 8P, 150MIL UMH9N, NPN, 2, 150 mW, SC-88, TP, 684864, MSOP, 8P, 118MILUMD9N, NPN/PNP, 150 mW, 4.7, UMT6, TP 1734, SOT-23, 6P, 150MIL
Remark
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Electrical Parts List
Level 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410
SEC CODE 0801-002641 0506-001052 0406-001104 1405-001082 1405-001082 1405-001082 1405-001082 1405-001082 1405-001082 1405-001082 1405-001082 1405-001082 1405-001082 1405-001082 0404-001044 0404-000108 0404-000108 0406-001104 0406-001104 0406-001104 0406-001104
Design LOC U8016 U8021 U8022 V600 V601 V605 V615 V616 V617 V618 V619 V620 V621 V622 ZD400 ZD401 ZD402 ZD602 ZD603 ZD604 ZD605
DESCRIPTIONS 7WZ08, 2-INPUT AND GATE, US8, 8P UMH9N, NPN, 2, 150 mW, SC-88, TP, 68ESDA6V1-5W6, 6.1/-/7.2 V, 100 W, SOT-323-6L 5.6 V, 20A, 1 x 0.5 x 0.6 mm, TP 5.6 V, 20A, 1 x 0.5 x 0.6 mm, TP 5.6 V, 20A, 1 x 0.5 x 0.6 mm, TP 5.6 V, 20A, 1 x 0.5 x 0.6 mm, TP 5.6 V, 20A, 1 x 0.5 x 0.6 mm, TP 5.6 V, 20A, 1 x 0.5 x 0.6 mm, TP 5.6 V, 20A, 1 x 0.5 x 0.6 mm, TP 5.6 V, 20A, 1 x 0.5 x 0.6 mm, TP 5.6 V, 20A, 1 x 0.5 x 0.6 mm, TP 5.6 V, 20A, 1 x 0.5 x 0.6 mm, TP 5.6 V, 20A, 1 x 0.5 x 0.6 mm, TP UPS5817, 20 V, 1A, SMD, TP RB705D, 20 V, 30 mA, SOT-23, TP RB705D, 20 V, 30 mA, SOT-23, TP ESDA6V1-5W6, 6.1/-/7.2 V, 100 W, SOT-323-6L ESDA6V1-5W6, 6.1/-/7.2 V, 100 W, SOT-323-6L ESDA6V1-5W6, 6.1/-/7.2 V, 100 W, SOT-323-6L ESDA6V1-5W6, 6.1/-/7.2 V, 100 W, SOT-323-6L
Remark
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3. SGH-A300 Block Diagrams
3-1 SGH-A300 Main Block Diagram
SAMSUNG Proprietary-Contents may change without notice 3-1
Block Diagrams
3-2 SGH-A300 Main RF Block Diagram
SAMSUNG Proprietary-Contents may change without notice 3-2
Block Diagrams
3-2-1 SGH-A300 RF Receive Part Block Diagram
SAMSUNG Proprietary-Contents may change without notice 3-3
Block Diagrams
3-2-2 SGH-A300 RF Transmit Part Block Diagram
SAMSUNG Proprietary-Contents may change without notice 3-4
4. SGH-A300 PCB Diagrams
4-1 SGH-A300 Main PCB Top Diagram
SAMSUNG Proprietary-Contents may change without notice 4-1
PCB diagrams
4-2 SGH-A300 Main PCB Bottom Diagram
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5.Flow Chart of Troubleshooting and Circuit Diagram
5-1 SGH-A300 Power ON
`POWER ON' does not work Y
Check the current consumption more than 100 mA
N
Download again
Y Check the Battery Voltage more than 3.3V Y
N
Charge the Battery
Check the pin 38 of U400 is more than 3.2 V Y
N
Check to the path from CN604 to pin 38 of U400 and keypad
U400 pin 33,28,30 = 2.8V
N
Change U400
Y
Check the clock signal at R105
N
Check the clock generation circuit (related to U400 and OSC100)
Y Check the initial operation Y END
SAMSUNG Proprietary-Contents may change without notice 5-1
Flow Chart of Troubleshooting and Circuit Diagram
5-2 SGH-A300 Initial
Initial Failure Y
Check the "Reset_B" signal at the pin 6 of U8016 is "High"
N
Check the U100 (IA)
Y
Check the pin 10 of U400 is "High"
N
Check the U201 (M46)
Y
Check the pin 11 of U400 is "High"
N
Check the U400 (PMIC)
Y Check the connections and initialization using Factory Test Program Y Check LCD connector CN601, and resolder bridge
Y END
SAMSUNG Proprietary-Contents may change without notice 5-2
Flow Chart of Troubleshooting and Circuit Diagram
5-3 SGH-A300 Sim Part
Phone can't access SIM card Y
Check the pin 1, 5 of CN400. voltage is 2.8V ?
N
Check the SIM related circuit of the U400
Y
Check the SIM connector's CN400 Connection to SIM card Y
N
Resolder CN400
Check the circuit around U515 (Serial EEPROM) and data stored in it
Y END
VBAT
VCCD
VCCD
C410 150PF
R409 4.7K
44 20 49 50 51 52
R407 4.7K
ISENP
35 36 37 38 4 5 12 2 9 1 3
ISENN
VSUB_P
GND4
GND5
GND6
VREF_CAP
GND7
S_Dat S_Clk PMIC_RESET
VCCD
NC1 NC2 VBAT1 VBAT2
23
GND1
45 46 47
NC3 POWER_KEY ALARM_IN DTR_IN
8 1 7
U8016-1
VSIM
U400
GND3 GND2
CN400 1 1 2 2 3 3 G 4 5 6 4 5 6
6 7 8
ENABLE_1 ENABLE_2 ENABLE_3
RESET_B PMIC_INTERRUPT
2 4
11 POWER_ON_RESET
10 CLOCK_REQUEST
RSS_DATA
G G G 7 8 9 10
SIM_CLK_CARD SIM_ENABLE SIM_DATA_CARD SIM_RST_CARD
BOOST_PULSE BOOT_VDD BOOT_SENSE VBOOST BOOST_ENABLE
16 SIM_DATA_M46
18 SIM_CLK_M46
48 VOUT_8 33 VOUT_1A 34 VOUT1B
31 VOUT_4A 32 VOUT_4B
19
GND_SENSE
22 SIM_RST_M46
30 VOUT_2
28 VOUT_3
29 VOUT_5
27 VOUT_6 43 VOUT_7
24 VSW1 25 VSW2 26 NC4
42 40 41 39 13
17 14 15 21
RSS_CLOCK
VCCD VCCA1
2
3
ZD402
1
R410 100
VOsc
VRF VTIC VSIM VSYN
Sim_Reset Sim_Clk Sim_Dat Sim_En Clk_Rqst
R404 100K
SAMSUNG Proprietary-Contents may change without notice 5-3
Flow Chart of Troubleshooting and Circuit Diagram
5-4 SGH-A300 Charging Part
Abnormal charging part Y Check the pin 17, 18 of CN603-1 is around 5V Y
N
Replace TA
Check the pin 2 of U8021 is "Low"
N
Check the U201 using Factory Test Program
Y Check the pin 5, 6 of U8021 is more than 0.5V Y
N
Resolder R648, R651, R646
Check the Voltage of pin 5 of U605 is between 3.2 V and 4.2 V Y END
N
Change U605
Ta_Det
Q605
3 1
2
Q601
Vbat
TA_PRES 1
U605 R646 22K
3 2
1 2 3
ISENSE DRIVE GND VCC VSENSE PROG
6 5 4
L602
R634 0 C634 10UF 10V
U8021
Vext
C635 10UF 10V
R637 3.3K,1%
1
6
Charger_Disable
2 5
R651 0
TA_PRES
R648 10K
3
4
SAMSUNG Proprietary-Contents may change without notice 5-4
Flow Chart of Troubleshooting and Circuit Diagram
5-5 SGH-A300 Microphone Part
Micro Phone does not work Y
check the connection from MIC600 Y
N
Change MIC600
Audio loopback is enabled by board test program. R104, R107 2.2 V
N
Resolder R104, R107, R103
Y END
Mic_Bias
R104 1.1K R103 330
C108 33UF C112 47NF C111 22PF
Mic+
C113 33PF C116 22PF
C115 47NF
MicR107 1.1K
SAMSUNG Proprietary-Contents may change without notice 5-5
Flow Chart of Troubleshooting and Circuit Diagram
5-6 SGH-A300 Speaker Part
Speaker does not work Y Check the connection between CN601 and LCD Module connector Y
Check the connection from CN601 to LCD Module
N
Replace Flexible PCB
Y
Check the voltage on the speaker line lands on LCD Module Y
N
Change the LCD Module
Is Speaker working ?
N
Replace the Speaker or resolder Speaker
Y END
SAMSUNG Proprietary-Contents may change without notice 5-6
Flow Chart of Troubleshooting and Circuit Diagram
5-7 SGH-A300 Key Data Input
Check initial operation Y Check the connection between CN602 and Keypad. Y Check the pin 1, 3, 4, of CN602 is "High" Y
N
Check the M46(U201)
When one of the keys is pushed, one of pin [5:12] of CN602 is "High"
N
Replace the key PCB
Y END
SAMSUNG Proprietary-Contents may change without notice 5-7
Flow Chart of Troubleshooting and Circuit Diagram
5-8 SGH-A300 Ring Indicator
Ring Indicator does not work Y Check the connection between CN602 and Keypad. Y
Check the Q203 pin 2 is "High" Y
N
Check M46(U201) by Factory Test Program
Check the Q203 pin 3 is "Low" Y
N
Replace Q203
CN602 pin 14 = "L" ?
N
Resolder CN602
Y
Key PCB is OK ?
N
Replace the key PCB
Y END
SAMSUNG Proprietary-Contents may change without notice 5-8
Flow Chart of Troubleshooting and Circuit Diagram
5-9 SGH-A300 Back Light
Backlight does not work Y Check the connection between CN601 and LCD Module. Y Backlight "ON" mode in the menu ? Y Check M46(U201) using Factory Test Program
N
Select backlight "ON" mode
CN601 pin 3 = "High" ? Y Check the connection from CN601 to LCD Module Y
N
N
Replace flexible PCB
LCD backlight on ? Y END
N
Replace LCD Module
VCCD
R609 100K ZD603
CN602
6 1
5
2
4
C647 33PF
3
Kbd_Rtn0 Kbd_Rtn1 Kbd_Strb0 Kbd_Strb2 Kbd_Strb4 Kbd_Strb6 Green_Led_En
1 3 5 7 9 11
Flip_Sns CN601 SLCD_CS LED_CTL 1 3 5 7 9 11 13 15 17 19 1 3 5 7 9 11 13 15 17 19 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 20 MLCD_CS Write
1 3 5 7 9 11 13 13 15 15 17 17 19 19
2 4 6 8 10 12 14 16 18 20
2 4 6 8 10 12 14 16 18 20
VBAT VCCD
Kbd_Rtn2 Kbd_Strb1 Kbd_Strb3 Kbd_Strb5 Kbd_Strb7 Red_Led_En KEY_PAD_CTL
C611 33PF
C609 33PF
C608 33PF
Reset_B Speaker+
Mtr_En SpkrU201
V620
ZD604
Green_Led_En
1 6
R220 330 Q202
3 1
2
G11 Green_Led
2
5
3
4
R219 330
Red_Led_En
M46
Q203
3 1
2
C14 Red_Led
SAMSUNG Proprietary-Contents may change without notice 5-9
Flow Chart of Troubleshooting and Circuit Diagram
5-10 SGH-A300 Alert Tone
Abnormal Alert tone Y Is there alert wave signal on the R635 during alert tone test? Y
N
ALERT by Test S/W
Is there alert wave signal on the Q603 pin3 during alert tone test?
N
Check the circuit related to Q603
Y
Check the C620 3.3V
N
Resolder D601 and C620
Y
Buzzer is ok?
N
Change the Buzzer
Y END
VBat
AU600 3 C620 22PF D601 1 C625 22PF 2 Q603 2 3 1 R635 150
Buzzer_En
SAMSUNG Proprietary-Contents may change without notice 5-10
Flow Chart of Troubleshooting and Circuit Diagram
5-11 SGH-A300 GSM Receiver
RX On RF input : 62 CH Amp. : -50 dBm Y
U505 Pin 9 -65 dBm Y
N
Resolder or Change CN500
U505 Pin 5 -65 dBm Y
N
Resolder& U505 Pin 5 -65 dBm
N
Check voltage U505 pins Pin 2 : L Pin 4 : H Pin 8 : H Pin 10 : L
Y
F501 pin 5 -65 dBm Y U507 pin 16, 17 -50 dBm Y
N
Resolder F501
N
Check OSC300 pin 1 -10 dBm Y
N
Change OSC300
Change U507
F301 pin 1, 2, 5, 6 -55 dBm Y F300 pin 1 -60 dBm Y F300 pin 4 -65 dBm Y U300 pin 26, 27 -55 dBm Y END
N
Change F301
N
Check D300 pin 1 1V~2.3V Y
N
Resolder or change D300
Change U300 Change F300
N
N
Change U300
SAMSUNG Proprietary-Contents may change without notice 5-11
Flow Chart of Troubleshooting and Circuit Diagram
5-12 SGH-A300 GSM Transmit
Tx On (level : 5) Battery voltage : 3.8 V N
U505 Pin 9 30 dBm N
Y
Resolder CN500
U505 Pin 1 30 dBm N
Y
Check voltage Pin 2 : H Pin 4 : L Pin 8 : H Pin 10 : L
Y
Resolder or Change U505
N
Resolder or Change U503, Q501
LAM1 Pin 3 30 dBm N
Y
Resolder or Change LAM1
U510 pin 4 0 dBm N
Y
Check U510 pin14 1V ~ 2V ? N
Y
Change U510
Change U508
U513 pin 3 1~2.3V ? Y
N
Check OSC300 pin1 -10 dBm Y
N
Change OSC300
Change U300
U513 Pin 9 : H Pin 7 : L Y
Y
Resolder or Change U512
Change U513
Y END
SAMSUNG Proprietary-Contents may change without notice 5-12
Flow Chart of Troubleshooting and Circuit Diagram
5-13 SGH-A300 DCS Receiver
RX On RF input : 698 CH Amp. : -50 dBm Y
U505 Pin 9 -65 dBm Y
N
Resolder or Change CN500
Check voltage U505 pins U505 Pin 7 -65 dBm Y N Resolder & U505 Pin 7 -65 dBm N Pin 2 : L Pin 4 : H Pin 8 : H Pin 10 : L
Y
F500 pin 5 -65 dBm Y U507 pin 16, 17 -50 dBm Y
N
Resolder F500
N
Check OSC300 pin 1 -10 dBm Y
N
Change OSC300
Change U507
F301 pin 1, 2, 5, 6 Y F300 pin 1 -60 dBm Y F300 pin 4 -65 dBm Y U300 pin 26, 27 -55 dBm Y END
N
Change F301
N
Check D300 pin 1 1 V Y
N
Resolder or change D300
Change U300 Change F300
N
N
Change U300
SAMSUNG Proprietary-Contents may change without notice 5-13
Flow Chart of Troubleshooting and Circuit Diagram
5-14 SGH-A300 DCS Transmit
Tx On (level : 0) Battery voltage : 3.8 V N
U505 Pin 9 25 dBm N
Y
Resolder CN500
U505 Pin 11 25 dBm N
Y
Check voltage Pin 2 : L Pin 4 : H Pin 8 : L Pin 10 : H
Y
Resolder or Change U505
N
Resolder or Change U503, Q501
LAM1 Pin 1 25 dBm N
Y
Resolder or Change LAM1
U510 pin 2 0 dBm N
Y
Check U510 pin14 1V ~ 2V ? N
Y
Change U510
Change U508
U513 pin 3 1~2.3V ? Y
N
Check OSC300 pin1 -10 dBm Y
N
Change OSC300
Change U300
U513 Pin 9 : L Pin 7 : H Y
Y
Resolder or Change U512
Change U513
Y END
SAMSUNG Proprietary-Contents may change without notice 5-14
VRF
R507 5.1
C524 330NF R509 5.1 AN500
Dcs_Tr
1 2 3
Gsm_Tr
C508 100PF R501 0
U507
1 2 3
U505
C512 22PF F501 L505 3.3nH L506 10nH
10 9 G 12 13 14 15 16 17 18 G VCC 19 20 8 7 GAINSEL BANDSEL1 VCC IFOUTIFOUT+ STEPSEL G LNA1800IN LOIN LOGND ENA NC 11
L500 NC
Rx_En1
C522 100NF
21 22 23 24 25 26 G G G GG G
U503 L603 10nH
L507 68nH
12
L504 68nH
C526 100PF
1 2 3
2 ANT 9
GND3 1 11 TX_GSM TX_DCS 10 CN500 COIL
2 1
C505 100PF
VC4
3
2 G G G G 1 3 4 6 C529 NC C531 NC 5
COIL
2
C509 100PF Q501
8
VCCD
VC1
Gsm_Rx
IN OUT
OUT
Rfifin+ Rfifin-
VCCD
3
GND1
R510 10K
VC3 7
C504 100PF R505 10K
IN 1
4
C517 22PF C503 33PF C507 6.8PF C515 10PF
5 VCC 4 LNA900IN 3 G 2 G NC
VC2
GND4 GND3 GND2 GND1
6 5 4 3
F500
6
Gsm_Rx Dcs_Rx
IN 2 L502 3.3nH
COIL
5
RX_GSM RX_DCS GND2
L503 1.6nH OUT 5 G G G G 1 3 4 6 C511 1.2PF
COIL
C513 22PF
Rxlo1
C510 NC L501 2.7nH
C523 NC
6
Dcs_Rx
C506 10PF R511 2K
1
R506 51
Rx_Gain0 4 TERMI IN OUT
C518 33PF C525 22PF
C532 100PF
C534 100NF
5
C514 1.5PF
Gsm_pa
C520 10PF U506 2K
6 Highband Dcs_Pa
C516 22PF
GND
7
LAM1
3 GND 2 IN OUT 1 COUP 8
Rf_Cpl
U502 U509 1 1 6
6
U508-2
Tx_En0
VTIC VCCD
2
5
2
R519 10K,1%
R531 6.2K
Tx_En0
R532
5 5 4 4 3
V_DPAC
Tx_En2 APC 6
R521 10K,1%
7
R517 10K,1% 3K
3
C501 1NF C538 1NF
1
U500
R520 10K,1%
6
R514 200
Dcs_Sw
U501 6 1 4 2 5
2
V_DPAC
5
U508-1 R513 20K,1%
Dcs_Tr
3
R518 120 R516 10K,1%
8 1
3
C530 100PF
Tx_Pwr+
R500 1K R503 10K D500
2 4 2 1
R515 10K,1% C535 10PF
Gsm_Tr
C519 33PF R649 0 R502 1K C656 NC R508 51
3
4
C655 NC
4 3
2
Q500
3 Rf_Cpl 1
C500 100PF
C533 33PF R512 10K,1% R528 220 C653 NC C527 33PF C545 47PF
4 GSMIN U510
VBat
Gsm_Pa
Tlcpo
C547 10PF C542 27PF C544 3.9NF U513 R527 390
GSMOUT
GND2
Dcs_Sw
GND3
C546 22PF
GND4
R524 200
C541 1PF
1 3 5 7 9 11 13 15 17
Flow Chart of Troubleshooting and Circuit Diagram
Txrf1
GND1 GND2 GND3 GND4 GND5 GND6 GND7 GND8 GND9
SAMSUNG Proprietary-Contents may change without notice 5-15
VRF
10 VCC2 8
C543 100PF
C659 15PF C539 33PF
U512 VCC 8 Gsm_Sw 9SW2 SW1 1Y 7 2B 6
VTIC
Highband
1 1A
7
VC OUT1
3 10 OUT2 GND5 6 12
C540 2PF
C528 10NF
14
C658 15PF
Tx_En1 1 VB1 5 VB2 2 GND1
2 1B
APC
R522 2K
APC
VCC1
6
C521 100UF 6.3V
16
3 2Y 2A 5
4 GND
Highband
R523 150 C537 22PF
BS 2 18 19 DCSIN
DCSOUT
12
4
8 11
20
GND10 GND11 GND12
GND13 GND14 GND15 GND16
21 22 23 24
Dcs_Pa
F301 7 G3 C324 10PF OUT2 C323 5 IN1 2 2.7PF C322 10PF R310 51
VRF
C300 100PF 6 IN2 L300 33nH OUT1 G2 8 3 C328 NC EC L305 33nH 1
Rfifin+ Txlo1
C301 100PF G1 4
C304 2.7PF
Rfifin-
R308 3.9K
L304 47nH R315 C335 33PF
Vhf_Tune
3
C326 18PF C310 22PF C311 22PF
C314 470PF
R307 4.3K,1%
C318 390PF
1
D300
Txrf1 C334 Rxmxo Syn_En 15PF Rx_En1
R302 3K
2
R316
51
C312 10NF R306 3K
NPO
VRF
Tx_En1
43 42 48 47 46 45 44 41 40 39 38 37
L302 8.2nH
COIL
Tlcpo
TXIN LOIN VCC7 IF1N-
Flow Chart of Troubleshooting and Circuit Diagram
VSYN
GND8 IF1N+ TXINR TXENA
R317 15 C339 33PF
GND1 BPC
L303 100nH
COIL
C317 10NF L301 100nH
COIL
R303 10
LOINR
RXMO
2 TLCPO VCC1 VCC6 RES1 RES2 VCC5 31 32 33 VCC2 GND2 TXIF+ TXIFGND6 IFI2IFI2+ IF2OIF2O+ LD 25 26 27 28 29 GND3 I+ IQ+ Q34 GND7 35
VRF
R318 C340 33PF 5 6 7 30 8 9 10 11 12 4
3
RXENA
SXENA
1 36
C306 NC
C308 1NF
C313 10UF 6.3V
Txif-
Txif+
U300
F300 4 OUT IN 1
Rxmxo 5 6
C345 10NF
2
GND2 GND1 FLOAT2 FLOAT1
Tx_I+
3
Tx_I-
Tx_Q+
Rx_If+
C347 NC C316 10NF L309 NC
2012
Tx_Q16 CLK 17 DATA 18 VCC3 21 FREF 15 LE 20 GND4 14 TXMO19 VCPO 22 GND5 23 V 24 VCC4
13 TXMO+
R319 NC
C346 10NF
C344 330PF
C343 330PF
C342 330PF C341 330PF
Rx_IfSyn0_Lck
R309 15
C337 2.2PF
Txmop
C330 12PF
VSYN
Txif+ Txmom Syn1_En Syn_Clk Syn_Dat
VSYN
L307 10nH
C320 33PF
C315 33PF
C319 4.7uF 6.3
SAMSUNG Proprietary-Contents may change without notice 5-16
Vhf_Tune C321 1NF Syn_Ref Uhf_Tune
R311 C333 4.7uF 6.3 C325 NC
L306 10nH
L308 10nH
Txif-
C338 2.2PF
VRF
R312 6.8K R314 4.7K,1% C329 470PF R305 18 C307 22PF C305 68UF 6.3V
R304 10
Uhf_Tune
C331 390PF C336 10NF 5 VTUNE 3 BSEL GND1 R313 100 2 6 8 4 C327 18PF C332 47NF C309 3.9PF 7 DCPW RF_OUT
R301 18
C302 3.9PF
Txlo1
R300 18
1
Rxlo1
C303 3.9PF
Highband
OSC300
SAMSUNG Proprietary-Contents may change without notice 5-17
Flow Chart of Troubleshooting and Circuit Diagram
ELECTRONICS
©Samsung Electronics Co.,Ltd. MAY. 2001 Pinted in Korea. Code No.: GH68-02031A BASIC.